Question

Hello please answer need help​

Answer 1

Answer:
`\Large\boxed{27}`

Explanation:

Given information converted into a mathematical statement

`a = icecream\\b=cookie\\c=brownie\\d=cake\\e=creamed cake`

`1)~a+b+a+b=42`

`2)~c+d+c=35`

`3)~c+c+e=29`

`4)~a+d+b-e=\mbox{?}`

Simplify each equation

`1)~2a+2b=42`

`2)~2c+d=35`

`3)~2c+e=29`

`4)~(a+b)+(d-e)=\mbox{?}`

Factorize 2 out of the 1) equation

`2a+2b=42`

`2(a+b)=42`

Divide 2 on both sides

`2(a+b)/2=42/2`

`a+b=21`

Current system

`1)~a+b=21`

`2)~2c+d=35`

`3)~2c+e=29`

`4)~(a+b)+(d-e)=\mbox{?}`

Subtract 3) equation from the 2) equation

`(2c +d)-(2c+e)=(35)-(29)`

Expand the parenthesis

`2c+d-2c-e=35-29`

Combine like terms

`2c-2c+d-e=6`

`d-e=6`

Current system

`1)~a+b=21`

`2)~d-e=6`

`3)~(a+b)+(d-e)=\mbox{?}`

Substitute values into the 3) equation to determine the final value

`(a+b)+(d-e)`

`=(21)+(6)`

`\Large\boxed{=27}`

Hope this helps!! :)

Please let me know if you have any questions

Answer 2

2x + 2y = 42

2w + q = 35

2w + v = 29

x + q + y - v = ?

x = 7

y = 14

w = 3

q = 29

v = 23

7 + 29 + 14 - 23 =

The answer is 27